Dynamic Reconfiguration of Primary/Backup Clusters

The Paper

https://www.usenix.org/system/files/conference/atc12/atc12-final74.pdf

Format

We start at 6:10, don't be late!

The discussion lasts for about 1 to 1.5 hours, depending upon the paper.

• Read the paper (done before you arrive)

• Introductions (name, and background)

• First impressions (1-2 minutes this is what I thought)

• Structured review (we move through the paper in order, everyone gets a chance to ask questions, offer comments, and raise concerns)

• Free form discussion

• Nominate and vote on the next paper

• Adjourn for food and/or drink at Steamworks (https://www.google.ca/maps?ion=1&espv=2&q=steamworks&bav=on.2,or.&biw=1674&bih=956&dpr=2&um=1&ie=UTF-8&sa=X&ved=0ahUKEwjTpLXtqb_MAhVC0mMKHWLiBLcQ_AUIBigB)

Abstract

Dynamically changing (reconfiguring) the membership of a replicated distributed system while preserving data consistency and system availability is a challenging problem. In this paper, we show that reconfiguration can be simplified by taking advantage of certain properties commonly provided by Primary/Backup systems. We describe a new reconfiguration protocol, recently implemented in Apache Zookeeper. It fully automates configuration changes and minimizes any interruption in service to clients while maintaining data consistency. By leveraging the properties already provided by Zookeeper our protocol is considerably simpler than state of the art.

Getting There

Stage 3 Systems is near the Vancouver City Centre Canada Line Station, or the Chinatown/Stadium Sky Train station, and there is pay parking available. Enter into the lobby, if no one is there to take you up the elevator, hang on if it's before 6:10, otherwise use the comments to get a hold of us.